Flights from Ottawa to Illinois

Flight deals from Ottawa to Illinois

Looking for a cheap last-minute deal or the best return flight from Ottawa to Illinois? If you want to travel next month, return fares start from Rs109,462. Find the lowest prices on one-way and return tickets right here.

Chicago.Rs57,532 per passenger.Departing Tue, 26 May.One-way flight with WestJet.Outbound indirect flight with WestJet, departs from Ottawa International on Tue, 26 May, arriving in Chicago Midway.Price includes taxes and charges.From Rs57,532, select.

Chicago.Rs98,781 per passenger.Departing Sat, 1 Aug.One-way flight with United.Outbound direct flight with United departs from Ottawa International on Sat, 1 Aug, arriving in Chicago O'Hare International.Price includes taxes and charges.From Rs98,781, select.

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Flying from Ottawa to Illinois

Arm yourself with these facts on the fly.

Cheapest flight found	Rs57,532
Cheapest month to fly	May
Average flight time	2 hrs, 27 mins
Cheapest airport to fly from	Ottawa International
Most popular airline	United

How to find cheap flights from Ottawa to Illinois

We've compared the best online travel agents and flight providers on the internet to find the cheapest plane tickets from Ottawa to Illinois. Other savvy travellers recently found return flights from Rs107,519 and one-way tickets from Rs57,532 one-way. Ready to join them? Here are a few tips to help you do it the smart way.

Fly from Ottawa International into Chicago Midway

At the moment, the lowest priced flight tickets to Illinois are from Ottawa International Airport to Chicago Midway Airport.

Fly in May

We crunched the flight calendar and found the cheapest time to fly from Ottawa to Illinois is currently May.

Flex your dates for the best rates

If you’re flexible on your departure dates, you can use Skyscanner's whole month tool to find the cheapest day of the year to fly from Ottawa to anywhere you choose in Illinois.

Watch as fares rise and fall

With Price Alerts, we'll let you know when flight prices from Ottawa to Illinois go up or down so you can book when the time is just right.

Relax – these are fee-free flight tickets

With us, there are no added fees – the Illinois to Illinois flight price you see when you search with us is what you pay to the provider.

Frequently asked questions

What's the average Ottawa to Illinois flight price?

We looked at all of the upcoming return flights from Ottawa to Illinois we could find over the next 12 months. It looks like Rs107,519 is the best price. This is good, compared to the average Illinois ticket price of Rs158,147.

What is the cheapest month to fly from Ottawa to Illinois?

The cheapest month to fly from Ottawa to Greater Peoria Airport is currently June. The cheapest month to fly from Ottawa to Chicago Midway Airport is usually May. And the cheapest month to fly from Ottawa to Chicago O'Hare International Airport is usually July.

Which upcoming date is cheapest to fly from Ottawa to Illinois on?

After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Ottawa to Illinois on Sunday, 31 May 2026.

Are there any direct flights from Ottawa to Illinois?

Ottawa International Airport offers direct flights to Illinois.

If I'm flying from Ottawa, where in Illinois is cheapest to fly into?

If you're flying from Ottawa, the cheapest city in Illinois to fly into is Chicago. The cheapest airport serving Chicago at the moment is Chicago Midway.

How long is the flight from Ottawa to Illinois?

The average flight time between Ottawa and Illinois is 2 hours and 27 minutes.